Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2021, Vol. 42 ›› Issue (10): 2898-2903.DOI: 10.3969/j.issn.1000-2561.2021.10.020

• Plant Cultivation, Physiology & Biochemistry • Previous Articles     Next Articles

Effects of Six Different Foliage Fertilizers on Growth and Quality of Dendrobium nobile Cultivating under Forest in Hainan, China

LIU Ying1,2, CHEN Qing1,2,*(), LIANG Xiao1,2, WU Chunling1,2   

  1. 1. Environment and Plant Protection Institute, China Academy of Tropical Agricultural Sciences / Key Laboratory of Pests Comprehensive Governance for Tropical Crops, Ministry of Agriculture and Rural Affairs / Hainan Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pests, Haikou, Hainan 571101, China
    2. Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Sanya, Hainan 572000, China
  • Received:2020-12-03 Revised:2021-02-01 Online:2021-10-25 Published:2021-11-25
  • Contact: CHEN Qing

Abstract:

In order to select suitable types of leaf fertilizer, promote the growth and improve the quality of Dendrobium nobilis, the effects of three chemical leaf fertilizers and three organic leaf fertilizers on the growth and quality of D. nobilis were studied by spray treatment. All fertilizer treatments increased tiller number, leaf number, stem section number, stem diameter and the plant height of D. nobilis, fresh weight, dry weight, FW/DW ratio and chlorophyll content in different degrees, but also improved the polysaccharides and total alkaloid content, thus spraying the leaf fertilizer could promote the growth and quality of D. nobilis. Among the three chemical fertilizers, the performance of promoting the growth and improving the quality of Wosheng was better than that of potassium dihydrogen phosphate, followed by Bihu. Compared with the control group, the stem diameter, fresh weight, dry weight, SPAD value, polysaccharide and total alkaloid content of D. nobilis were significantly increased after spraying Wosheng, and the growth rate was 21.87%, 35.68%, 39.50%, 7.96%, 15.01% and 9.89%, respectively. Among the three organic fertilizers, the performance of promoting the growth and improving the quality of potassium fulvic acid was better than that of Duligao, followed by Haidaosu. Compared with the control group, potassium fulvic acid significantly increased the stem diameter, fresh weight and dry weight of D. nobilis by 20.68%, 28.39% and 34.50%, respectively. Therefore, Wosheng and potassium fulvic acid significantly improved the growth and quality of D. nobile and could be used as foliar fertilizer for D. nobile cultivating under forest in Hainan.

Key words: Dendrobium nobile Lindl., foliage fertilizers, growth, quality

CLC Number: